Most people prefer peeing directly on a midstream test, but there are people who prefer to dip the test in a cup of urine. Test strips, on the other hand, are not designed to be peed on directly. With HCG test strips, you'll want to pee in a cup and dip the test strip in the cup to get an accurate result.
Storing a urine sample
If you can't hand your urine sample in within 1 hour, you should put the container in a sealed plastic bag then store it in the fridge at around 4C. Do not keep it for longer than 24 hours.
This method also increases the likelihood of the test falling into the toilet by accident. Instead, collect your urine in a small, plastic cup and immerse the test strip in the urine for the amount of time indicated in the instructions.
Your test will still be valid if it's the afternoon or you've already had water, but first morning urine will result in a stronger results line.
If you take the test and accidentally leave it sitting without reading the results, you can experience what looks like a positive result. In reality, it's likely what's called an evaporation line, a faint line that can occur when the test sits too long.
However, you don't need to stress too much about taking a pregnancy test at a specific time of day. Using urine later on when it's less concentrated may only “hypothetically delay a positive result by only 12 to 24 hours,” advises Dr. Flanagan.
You should wait 3 minutes to confirm a “Not Pregnant” result, or when testing before you have missed your period. Read your result within 10 minutes of testing and disregard any changes after this time.
Urine Storing Home Pregnancy Test
Keep the early morning urine sample in a jar for about 24 hours. You will see a thin layer of the film right on top of the stored urine sample. There will not be any layer or film.
In general, the best time is when you have your first morning pee. However, some pregnancy tests are sensitive enough to detect HCG no matter what time of day you take the test. When possible, try to wait until it's been three hours since your last pee before you take the test.
So, one needs to wait untill six to seven days for the hCG levels to reach a detectable amount before taking the over-the-counter urine test.
The first morning urine is the urine you void when you get up for the day. If you get up during the night, it is not necessary to catch that urine. You can wait until you get up for the day. For women who work night shift, your first morning urine will be the urine you void after you slept during the day.
Know this: All Clearblue® pregnancy tests are over 99% accurate from the day you expect your period. False positives very rarely occur, and are often due to medical conditions or certain medications. False negatives, while more common, typically occur due to testing too early or drinking too much liquid before testing.
At room temperature, urine specimen stability is limited to 2 – 6 hours, depending on the urine constituents tested. 1,2 Refrigerated urine specimens are stable for 24 hours without chemical preservative added, or three days when preserved (LifeLabs in-house specimen stability study, 2018).
During pregnancy, dehydration can cause urine to become darker and more concentrated, leading to a yellow or orange color. Dehydration can also increase the risk of urinary tract infections and other complications.
Other reasons for false results are: dirty urine collecting cup (detergent residue, for example, is known to cause false-positive results) faulty test kit (for example, the kit is damaged, past its use-by date or has been exposed to heat or moisture)
Can a pregnancy test come up negative if I didn't pee enough? A false negative on a home pregnancy test is possible, but extremely unlikely. As long as your urine got on the test's absorbent strip, it should be accurate. You can always take another test if you're worried you might have missed.
The bottom line. The baking soda gender test is not a reliable method to figure out if you're having a girl or a boy, but it's a harmless way to try to guess your baby's sex while you patiently wait for them to arrive.
It's possible to get a negative pregnancy test result followed by a positive result, especially if you tested early. This is because hCG levels rise rapidly in the first few days after implantation. It's also possible to get a positive test result followed by a negative result.
If you see a positive result beyond this time frame, you may be left second-guessing the results. However, always remember that a pregnancy test result is only accurate within 10 minutes. After the that, it's best to throw the test away to avoid confusion.
There's two possibilities: it could mean a positive test result or it could be an evaporation line. An evaporation line on a pregnancy test is a faint line (or rather, mark) caused by a test reaction that occurs when the urine evaporates, or when the test gets wet.